java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-5f7ec6e [2018-01-31 09:31:47,765 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-31 09:31:47,770 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-31 09:31:47,792 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-31 09:31:47,793 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-31 09:31:47,794 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-31 09:31:47,795 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-31 09:31:47,798 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-31 09:31:47,800 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-31 09:31:47,800 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-31 09:31:47,808 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-31 09:31:47,808 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-31 09:31:47,809 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-31 09:31:47,810 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-31 09:31:47,811 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-31 09:31:47,817 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-31 09:31:47,819 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-31 09:31:47,823 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-31 09:31:47,824 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-31 09:31:47,828 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-31 09:31:47,830 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-31 09:31:47,830 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-31 09:31:47,831 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-31 09:31:47,833 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-31 09:31:47,834 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-31 09:31:47,835 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-31 09:31:47,835 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-31 09:31:47,836 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-31 09:31:47,836 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-31 09:31:47,839 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-31 09:31:47,840 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-31 09:31:47,840 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-31 09:31:47,857 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-31 09:31:47,859 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-31 09:31:47,859 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-31 09:31:47,860 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-31 09:31:47,860 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-31 09:31:47,860 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-31 09:31:47,860 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-31 09:31:47,861 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-31 09:31:47,861 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-31 09:31:47,861 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-31 09:31:47,861 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-31 09:31:47,861 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-31 09:31:47,862 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-31 09:31:47,862 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-31 09:31:47,862 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-31 09:31:47,862 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-31 09:31:47,863 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-31 09:31:47,863 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-31 09:31:47,863 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-31 09:31:47,863 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-31 09:31:47,863 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-31 09:31:47,863 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-31 09:31:47,864 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-31 09:31:47,864 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 09:31:47,864 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-31 09:31:47,864 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-31 09:31:47,864 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-31 09:31:47,864 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-31 09:31:47,865 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-31 09:31:47,865 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-31 09:31:47,865 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-31 09:31:47,865 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-31 09:31:47,867 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-31 09:31:47,868 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-31 09:31:47,926 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-31 09:31:47,941 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-31 09:31:47,945 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-31 09:31:47,946 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-31 09:31:47,947 INFO L276 PluginConnector]: CDTParser initialized [2018-01-31 09:31:47,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i [2018-01-31 09:31:48,140 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-31 09:31:48,150 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-31 09:31:48,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-31 09:31:48,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-31 09:31:48,158 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-31 09:31:48,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:31:48" (1/1) ... [2018-01-31 09:31:48,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f37c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:31:48, skipping insertion in model container [2018-01-31 09:31:48,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:31:48" (1/1) ... [2018-01-31 09:31:48,183 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:31:48,245 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:31:48,420 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:31:48,447 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:31:48,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:31:48 WrapperNode [2018-01-31 09:31:48,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-31 09:31:48,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-31 09:31:48,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-31 09:31:48,458 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-31 09:31:48,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:31:48" (1/1) ... [2018-01-31 09:31:48,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:31:48" (1/1) ... [2018-01-31 09:31:48,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:31:48" (1/1) ... [2018-01-31 09:31:48,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:31:48" (1/1) ... [2018-01-31 09:31:48,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:31:48" (1/1) ... [2018-01-31 09:31:48,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:31:48" (1/1) ... [2018-01-31 09:31:48,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:31:48" (1/1) ... [2018-01-31 09:31:48,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-31 09:31:48,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-31 09:31:48,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-31 09:31:48,507 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-31 09:31:48,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:31:48" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 09:31:48,582 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-31 09:31:48,583 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-31 09:31:48,583 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrpbrk [2018-01-31 09:31:48,583 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-31 09:31:48,584 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-31 09:31:48,584 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-31 09:31:48,584 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-31 09:31:48,584 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-31 09:31:48,584 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-31 09:31:48,584 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-31 09:31:48,585 INFO L128 BoogieDeclarations]: Found specification of procedure cstrpbrk [2018-01-31 09:31:48,585 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-31 09:31:48,585 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-31 09:31:48,585 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-31 09:31:49,206 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-31 09:31:49,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:31:49 BoogieIcfgContainer [2018-01-31 09:31:49,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-31 09:31:49,207 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-31 09:31:49,207 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-31 09:31:49,208 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-31 09:31:49,211 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:31:49" (1/1) ... [2018-01-31 09:31:49,220 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-31 09:31:49,220 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-31 09:31:49,221 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-31 09:31:49,269 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 9 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-31 09:31:49,300 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-31 09:31:49,370 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-31 09:32:40,087 INFO L314 AbstractInterpreter]: Visited 82 different actions 556 times. Merged at 52 different actions 313 times. Never widened. Found 45 fixpoints after 7 different actions. Largest state had 57 variables. [2018-01-31 09:32:40,089 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-31 09:32:40,101 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 4 [2018-01-31 09:32:40,101 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-31 09:32:40,101 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-31 09:32:40,102 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select |v_#memory_int_8| v_main_~nondetString2~5.base_2), at (SUMMARY for call write~int(0, ~nondetString2~5.base, ~nondetString2~5.offset + (~length2~5 - 1) * 1, 1); srcloc: L563')) ((select (select |v_#memory_int_2| |v_cstrpbrk_#t~post2.base_3|) |v_cstrpbrk_#t~post2.offset_3|), at (SUMMARY for call #t~mem3 := read~int(#t~post2.base, #t~post2.offset, 1); srcloc: L546''')) ((select |v_#memory_int_6| v_main_~nondetString1~5.base_2), at (SUMMARY for call write~int(0, ~nondetString1~5.base, ~nondetString1~5.offset + (~length1~5 - 1) * 1, 1); srcloc: L563)) ((select (select |v_#memory_int_1| |v_cstrpbrk_#t~post0.base_3|) |v_cstrpbrk_#t~post0.offset_3|), at (SUMMARY for call #t~mem1 := read~int(#t~post0.base, #t~post0.offset, 1); srcloc: L545'')) [2018-01-31 09:32:40,129 INFO L547 PartitionManager]: partitioning result: [2018-01-31 09:32:40,129 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-31 09:32:40,129 INFO L562 PartitionManager]: at dimension 0 [2018-01-31 09:32:40,129 INFO L563 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-01-31 09:32:40,129 INFO L564 PartitionManager]: # location blocks :3 [2018-01-31 09:32:40,129 INFO L562 PartitionManager]: at dimension 1 [2018-01-31 09:32:40,130 INFO L563 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-31 09:32:40,130 INFO L564 PartitionManager]: # location blocks :1 [2018-01-31 09:32:40,131 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-31 09:32:40,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 09:32:40 BasicIcfg [2018-01-31 09:32:40,150 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-31 09:32:40,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-31 09:32:40,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-31 09:32:40,251 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-31 09:32:40,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 09:31:48" (1/4) ... [2018-01-31 09:32:40,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3985e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:32:40, skipping insertion in model container [2018-01-31 09:32:40,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:31:48" (2/4) ... [2018-01-31 09:32:40,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3985e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:32:40, skipping insertion in model container [2018-01-31 09:32:40,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:31:49" (3/4) ... [2018-01-31 09:32:40,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3985e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 09:32:40, skipping insertion in model container [2018-01-31 09:32:40,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 09:32:40" (4/4) ... [2018-01-31 09:32:40,255 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-31 09:32:40,265 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-31 09:32:40,271 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-01-31 09:32:40,313 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-31 09:32:40,313 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-31 09:32:40,313 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-31 09:32:40,313 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-31 09:32:40,313 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-31 09:32:40,314 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-31 09:32:40,314 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-31 09:32:40,314 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-31 09:32:40,315 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-31 09:32:40,327 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-01-31 09:32:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-31 09:32:40,334 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:32:40,335 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:32:40,335 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 09:32:40,340 INFO L82 PathProgramCache]: Analyzing trace with hash 528743970, now seen corresponding path program 1 times [2018-01-31 09:32:40,342 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:32:40,343 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:32:40,383 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:40,383 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:32:40,384 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:40,446 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:32:40,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:32:40,603 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:32:40,603 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 09:32:40,605 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-31 09:32:40,615 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-31 09:32:40,616 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-31 09:32:40,618 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2018-01-31 09:32:40,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:32:40,879 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2018-01-31 09:32:40,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-31 09:32:40,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-01-31 09:32:40,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:32:40,890 INFO L225 Difference]: With dead ends: 114 [2018-01-31 09:32:40,890 INFO L226 Difference]: Without dead ends: 69 [2018-01-31 09:32:40,894 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-31 09:32:40,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-01-31 09:32:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-01-31 09:32:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-01-31 09:32:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2018-01-31 09:32:40,932 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 15 [2018-01-31 09:32:40,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:32:40,932 INFO L432 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2018-01-31 09:32:40,932 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-31 09:32:40,933 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2018-01-31 09:32:40,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-31 09:32:40,933 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:32:40,933 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:32:40,933 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 09:32:40,934 INFO L82 PathProgramCache]: Analyzing trace with hash 528743972, now seen corresponding path program 1 times [2018-01-31 09:32:40,934 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:32:40,934 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:32:40,935 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:40,935 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:32:40,935 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:40,950 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:32:41,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:32:41,212 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:32:41,212 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-31 09:32:41,213 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-31 09:32:41,214 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-31 09:32:41,214 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-01-31 09:32:41,214 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 6 states. [2018-01-31 09:32:41,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:32:41,288 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2018-01-31 09:32:41,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-31 09:32:41,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-01-31 09:32:41,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:32:41,291 INFO L225 Difference]: With dead ends: 69 [2018-01-31 09:32:41,291 INFO L226 Difference]: Without dead ends: 68 [2018-01-31 09:32:41,292 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-01-31 09:32:41,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-01-31 09:32:41,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-01-31 09:32:41,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-01-31 09:32:41,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2018-01-31 09:32:41,299 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 15 [2018-01-31 09:32:41,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:32:41,300 INFO L432 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2018-01-31 09:32:41,300 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-31 09:32:41,300 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2018-01-31 09:32:41,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-31 09:32:41,301 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:32:41,301 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:32:41,301 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 09:32:41,301 INFO L82 PathProgramCache]: Analyzing trace with hash -788805791, now seen corresponding path program 1 times [2018-01-31 09:32:41,301 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:32:41,301 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:32:41,302 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:41,302 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:32:41,302 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:41,315 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:32:41,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:32:41,354 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:32:41,354 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 09:32:41,355 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-31 09:32:41,355 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-31 09:32:41,355 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-31 09:32:41,355 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand 4 states. [2018-01-31 09:32:41,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:32:41,403 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2018-01-31 09:32:41,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-31 09:32:41,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-31 09:32:41,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:32:41,404 INFO L225 Difference]: With dead ends: 68 [2018-01-31 09:32:41,404 INFO L226 Difference]: Without dead ends: 67 [2018-01-31 09:32:41,405 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-31 09:32:41,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-01-31 09:32:41,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-01-31 09:32:41,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-31 09:32:41,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2018-01-31 09:32:41,411 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 16 [2018-01-31 09:32:41,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:32:41,411 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2018-01-31 09:32:41,411 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-31 09:32:41,412 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-01-31 09:32:41,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-31 09:32:41,412 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:32:41,412 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:32:41,412 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 09:32:41,413 INFO L82 PathProgramCache]: Analyzing trace with hash -788805789, now seen corresponding path program 1 times [2018-01-31 09:32:41,413 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:32:41,413 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:32:41,414 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:41,414 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:32:41,414 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:41,435 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:32:41,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:32:41,861 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:32:41,861 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-31 09:32:41,862 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-31 09:32:41,862 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-31 09:32:41,862 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-31 09:32:41,862 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 5 states. [2018-01-31 09:32:41,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:32:41,994 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2018-01-31 09:32:42,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-31 09:32:42,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-01-31 09:32:42,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:32:42,001 INFO L225 Difference]: With dead ends: 67 [2018-01-31 09:32:42,002 INFO L226 Difference]: Without dead ends: 66 [2018-01-31 09:32:42,002 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-01-31 09:32:42,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-01-31 09:32:42,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-01-31 09:32:42,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-01-31 09:32:42,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2018-01-31 09:32:42,011 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 16 [2018-01-31 09:32:42,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:32:42,011 INFO L432 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2018-01-31 09:32:42,011 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-31 09:32:42,011 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2018-01-31 09:32:42,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-31 09:32:42,012 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:32:42,012 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:32:42,012 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 09:32:42,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1467405581, now seen corresponding path program 1 times [2018-01-31 09:32:42,013 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:32:42,016 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:32:42,017 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:42,017 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:32:42,017 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:42,050 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:32:42,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:32:42,307 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:32:42,307 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-31 09:32:42,307 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-31 09:32:42,308 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-31 09:32:42,308 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-31 09:32:42,308 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand 6 states. [2018-01-31 09:32:42,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:32:42,816 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2018-01-31 09:32:42,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-31 09:32:42,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-31 09:32:42,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:32:42,818 INFO L225 Difference]: With dead ends: 66 [2018-01-31 09:32:42,818 INFO L226 Difference]: Without dead ends: 52 [2018-01-31 09:32:42,819 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-31 09:32:42,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-01-31 09:32:42,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-01-31 09:32:42,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-01-31 09:32:42,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2018-01-31 09:32:42,824 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 24 [2018-01-31 09:32:42,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:32:42,824 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2018-01-31 09:32:42,824 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-31 09:32:42,824 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2018-01-31 09:32:42,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-31 09:32:42,825 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:32:42,825 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:32:42,825 INFO L371 AbstractCegarLoop]: === Iteration 6 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 09:32:42,825 INFO L82 PathProgramCache]: Analyzing trace with hash -115617639, now seen corresponding path program 1 times [2018-01-31 09:32:42,826 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:32:42,826 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:32:42,827 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:42,827 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:32:42,827 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:42,839 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:32:42,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:32:42,882 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:32:42,883 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-31 09:32:42,883 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-31 09:32:42,883 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-31 09:32:42,883 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-31 09:32:42,883 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 6 states. [2018-01-31 09:32:42,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:32:42,990 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2018-01-31 09:32:42,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-31 09:32:42,990 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-01-31 09:32:42,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:32:42,991 INFO L225 Difference]: With dead ends: 52 [2018-01-31 09:32:42,991 INFO L226 Difference]: Without dead ends: 51 [2018-01-31 09:32:42,991 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-01-31 09:32:42,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-01-31 09:32:42,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-01-31 09:32:42,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-01-31 09:32:42,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-01-31 09:32:42,996 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 26 [2018-01-31 09:32:42,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:32:42,997 INFO L432 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-01-31 09:32:42,997 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-31 09:32:42,997 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-01-31 09:32:42,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-31 09:32:42,998 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:32:42,998 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:32:42,998 INFO L371 AbstractCegarLoop]: === Iteration 7 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 09:32:42,998 INFO L82 PathProgramCache]: Analyzing trace with hash -115617637, now seen corresponding path program 1 times [2018-01-31 09:32:42,998 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:32:42,999 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:32:42,999 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:43,000 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:32:43,000 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:43,012 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:32:43,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:32:43,172 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:32:43,172 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-31 09:32:43,172 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-31 09:32:43,172 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-31 09:32:43,173 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-31 09:32:43,173 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 9 states. [2018-01-31 09:32:43,395 WARN L143 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 14 [2018-01-31 09:32:43,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:32:43,457 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2018-01-31 09:32:43,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-31 09:32:43,457 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-01-31 09:32:43,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:32:43,458 INFO L225 Difference]: With dead ends: 59 [2018-01-31 09:32:43,458 INFO L226 Difference]: Without dead ends: 58 [2018-01-31 09:32:43,458 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-01-31 09:32:43,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-01-31 09:32:43,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2018-01-31 09:32:43,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-01-31 09:32:43,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2018-01-31 09:32:43,464 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 26 [2018-01-31 09:32:43,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:32:43,465 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2018-01-31 09:32:43,465 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-31 09:32:43,465 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2018-01-31 09:32:43,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-31 09:32:43,466 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:32:43,466 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:32:43,466 INFO L371 AbstractCegarLoop]: === Iteration 8 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 09:32:43,466 INFO L82 PathProgramCache]: Analyzing trace with hash -263921074, now seen corresponding path program 1 times [2018-01-31 09:32:43,467 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:32:43,467 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:32:43,467 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:43,468 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:32:43,468 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:43,481 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:32:43,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:32:43,664 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:32:43,665 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-31 09:32:43,665 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-31 09:32:43,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-31 09:32:43,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-01-31 09:32:43,666 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 10 states. [2018-01-31 09:32:43,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:32:43,929 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2018-01-31 09:32:43,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-31 09:32:43,929 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2018-01-31 09:32:43,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:32:43,930 INFO L225 Difference]: With dead ends: 65 [2018-01-31 09:32:43,930 INFO L226 Difference]: Without dead ends: 64 [2018-01-31 09:32:43,931 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-01-31 09:32:43,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-01-31 09:32:43,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 59. [2018-01-31 09:32:43,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-01-31 09:32:43,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2018-01-31 09:32:43,937 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 35 [2018-01-31 09:32:43,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:32:43,938 INFO L432 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2018-01-31 09:32:43,938 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-31 09:32:43,938 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2018-01-31 09:32:43,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-31 09:32:43,940 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:32:43,940 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:32:43,941 INFO L371 AbstractCegarLoop]: === Iteration 9 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 09:32:43,941 INFO L82 PathProgramCache]: Analyzing trace with hash -263921076, now seen corresponding path program 1 times [2018-01-31 09:32:43,941 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:32:43,941 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:32:43,942 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:43,942 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:32:43,942 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:43,957 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:32:44,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:32:44,009 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:32:44,009 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-31 09:32:44,009 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-31 09:32:44,009 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-31 09:32:44,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-31 09:32:44,010 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 7 states. [2018-01-31 09:32:44,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:32:44,085 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2018-01-31 09:32:44,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-31 09:32:44,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-01-31 09:32:44,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:32:44,086 INFO L225 Difference]: With dead ends: 64 [2018-01-31 09:32:44,086 INFO L226 Difference]: Without dead ends: 63 [2018-01-31 09:32:44,086 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-01-31 09:32:44,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-01-31 09:32:44,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2018-01-31 09:32:44,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-01-31 09:32:44,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2018-01-31 09:32:44,093 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 35 [2018-01-31 09:32:44,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:32:44,094 INFO L432 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2018-01-31 09:32:44,094 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-31 09:32:44,094 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2018-01-31 09:32:44,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-01-31 09:32:44,095 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:32:44,095 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:32:44,095 INFO L371 AbstractCegarLoop]: === Iteration 10 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 09:32:44,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1573091744, now seen corresponding path program 1 times [2018-01-31 09:32:44,096 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:32:44,096 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:32:44,096 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:44,097 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:32:44,097 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:44,114 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:32:44,449 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:32:44,450 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 09:32:44,450 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-31 09:32:44,467 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:32:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:44,525 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 09:32:44,574 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-01-31 09:32:44,575 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-31 09:32:44,626 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-31 09:32:44,627 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:24 [2018-01-31 09:32:44,684 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-01-31 09:32:44,698 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-01-31 09:32:44,698 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-31 09:32:44,721 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-31 09:32:44,827 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-31 09:32:44,827 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:21 [2018-01-31 09:32:45,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-01-31 09:32:45,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-01-31 09:32:45,213 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-01-31 09:32:45,217 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-31 09:32:45,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-01-31 09:32:45,229 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-01-31 09:32:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:32:45,389 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-31 09:32:45,389 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 21 [2018-01-31 09:32:45,390 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-01-31 09:32:45,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-01-31 09:32:45,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=407, Unknown=3, NotChecked=0, Total=462 [2018-01-31 09:32:45,390 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 22 states. [2018-01-31 09:32:46,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:32:46,331 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2018-01-31 09:32:46,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-01-31 09:32:46,332 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 43 [2018-01-31 09:32:46,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:32:46,333 INFO L225 Difference]: With dead ends: 87 [2018-01-31 09:32:46,334 INFO L226 Difference]: Without dead ends: 86 [2018-01-31 09:32:46,334 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=170, Invalid=949, Unknown=3, NotChecked=0, Total=1122 [2018-01-31 09:32:46,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-01-31 09:32:46,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2018-01-31 09:32:46,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-01-31 09:32:46,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2018-01-31 09:32:46,344 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 43 [2018-01-31 09:32:46,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:32:46,345 INFO L432 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2018-01-31 09:32:46,345 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-01-31 09:32:46,345 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2018-01-31 09:32:46,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-01-31 09:32:46,346 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:32:46,346 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:32:46,346 INFO L371 AbstractCegarLoop]: === Iteration 11 === [cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-31 09:32:46,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1687121253, now seen corresponding path program 1 times [2018-01-31 09:32:46,347 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:32:46,347 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:32:46,348 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:46,348 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:32:46,348 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:32:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:46,363 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:32:46,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:32:46,800 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 09:32:46,800 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-01-31 09:32:46,807 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-31 09:32:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:32:46,850 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 09:32:46,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-01-31 09:32:46,890 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-01-31 09:32:46,905 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_1 term size 6 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:270) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:445) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-31 09:32:46,909 INFO L168 Benchmark]: Toolchain (without parser) took 58768.73 ms. Allocated memory was 308.3 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 267.2 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 753.6 MB. Max. memory is 5.3 GB. [2018-01-31 09:32:46,910 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 308.3 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:32:46,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.01 ms. Allocated memory is still 308.3 MB. Free memory was 267.2 MB in the beginning and 257.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:32:46,911 INFO L168 Benchmark]: Boogie Preprocessor took 48.53 ms. Allocated memory is still 308.3 MB. Free memory was 257.2 MB in the beginning and 255.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:32:46,913 INFO L168 Benchmark]: RCFGBuilder took 699.70 ms. Allocated memory is still 308.3 MB. Free memory was 255.2 MB in the beginning and 234.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:32:46,913 INFO L168 Benchmark]: IcfgTransformer took 50942.85 ms. Allocated memory was 308.3 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 234.2 MB in the beginning and 1.7 GB in the end (delta: -1.4 GB). Peak memory consumption was 442.5 MB. Max. memory is 5.3 GB. [2018-01-31 09:32:46,914 INFO L168 Benchmark]: TraceAbstraction took 6758.03 ms. Allocated memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: 82.8 MB). Free memory was 1.7 GB in the beginning and 1.5 GB in the end (delta: 195.4 MB). Peak memory consumption was 278.2 MB. Max. memory is 5.3 GB. [2018-01-31 09:32:46,915 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 308.3 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 307.01 ms. Allocated memory is still 308.3 MB. Free memory was 267.2 MB in the beginning and 257.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 48.53 ms. Allocated memory is still 308.3 MB. Free memory was 257.2 MB in the beginning and 255.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 699.70 ms. Allocated memory is still 308.3 MB. Free memory was 255.2 MB in the beginning and 234.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 5.3 GB. * IcfgTransformer took 50942.85 ms. Allocated memory was 308.3 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 234.2 MB in the beginning and 1.7 GB in the end (delta: -1.4 GB). Peak memory consumption was 442.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 6758.03 ms. Allocated memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: 82.8 MB). Free memory was 1.7 GB in the beginning and 1.5 GB in the end (delta: 195.4 MB). Peak memory consumption was 278.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 68 LocStat_MAX_WEQGRAPH_SIZE : 5 LocStat_MAX_SIZEOF_WEQEDGELABEL : 3 LocStat_NO_SUPPORTING_EQUALITIES : 1737 LocStat_NO_SUPPORTING_DISEQUALITIES : 1078 LocStat_NO_DISJUNCTIONS : -136 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 91 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 151 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 93 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.491546 RENAME_VARIABLES(MILLISECONDS) : 0.208432 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.475716 PROJECTAWAY(MILLISECONDS) : 0.035636 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.089895 DISJOIN(MILLISECONDS) : 0.288498 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.228841 ADD_EQUALITY(MILLISECONDS) : 0.014192 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.007035 #CONJOIN_DISJUNCTIVE : 886 #RENAME_VARIABLES : 1877 #UNFREEZE : 0 #CONJOIN : 1184 #PROJECTAWAY : 1088 #ADD_WEAK_EQUALITY : 11 #DISJOIN : 167 #RENAME_VARIABLES_DISJUNCTIVE : 1871 #ADD_EQUALITY : 153 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 10 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 3 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 3 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 3 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 2 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int] : 4 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_1 term size 6 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_1 term size 6: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-31_09-32-46-926.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-31_09-32-46-926.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-31_09-32-46-926.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-31_09-32-46-926.csv Received shutdown request...